Authorization Bypass in SAP S/4HANA Manage Bank Chains

Executive Summary

This vulnerability in SAP S/4HANA's Manage Bank Chains app allows low-privileged attackers to delete specific entries by sending crafted requests. The issue stems from insufficient authorization checks in the app's functionality.

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Detection Guidance

Detecting this vulnerability requires checking SAP S/4HANA systems for unauthorized deletion requests in the Manage Bank Chains app. Review application logs for unusual DELETE operations targeting sensitive entries. Ensure proper authorization checks are enforced in the app's functionality.

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Impact Analysis

An attacker could exploit this to delete entries they shouldn't access, causing low impact on system availability. Confidentiality and integrity of data remain unaffected.

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Compliance Impact

This vulnerability has a low impact on availability but does not affect confidentiality or integrity. It may not directly violate GDPR or HIPAA, but unauthorized data deletion could raise concerns under principles requiring integrity and availability of personal or health data.

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Mitigation Strategies

Apply the official SAP security note 3657599 to patch the authorization check flaw in the Manage Bank Chains app. Ensure low-privilege users cannot send crafted requests to delete unauthorized entries.

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